You can also try this:
;------------------------------------
$Name: Gattling Turret
$Model File: none
@Laser Bitmap: laserglow04
@Laser Glow: 2_laserglow03
@Laser Color: 150, 250, 150
@Laser Color2: 180, 240, 180
@Laser Length: 9.0
@Laser Head Radius: 0.60
@Laser Tail Radius: 0.60
$Mass: 0.4
$Velocity: 1200.0
$Fire Wait: 0.01
$Damage: 10
$Armor Factor: 1.0
$Shield Factor: 0.9
$Subsystem Factor: 0.8
$Lifetime: 0.8
$Energy Consumed: 0.30
$Cargo Size: 0.0
$Homing: NO
$LaunchSnd: 110
$ImpactSnd: 85
$Flags: ("Big Ship" "same turret cooldown" )
$Icon: icongun03
$Anim: LoadGun02
$Impact Explosion: none
$FOF: 1.1
DISCLAIMER: I'm not responsible for the carnage that will result in it's use.